Dessalator pump not working


I have a Dessalator Duo 100. When I switch on the 220v motor the breaker trips after a bout 5 seconds. When I try the 24v motor nothing at all happens. In both cases there is no movement at all. However I can turn it by hand quite easily. I had thought it may have been a clogged 5 micron filter but changing this made no difference. I would be interested to know if anyone has a troubleshooting guide or a workshop manual for the pump as I'm assuming this is where the problem lies.
Ya Fohi Amel 54 #98

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